The Earth Gravitational Models (EGM) are a series of geopotential models of the Earth published by the National Geospatial-Intelligence Agency (NGA)....
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defines an Earth-centered, Earth-fixed coordinate system and a geodetic datum, and also describes the associated Earth Gravitational Model (EGM) and World...
24 KB (2,842 words) - 03:41, 26 April 2025
would take under the influence of the gravity of Earth, including gravitational attraction and Earth's rotation, if other influences such as winds and...
29 KB (3,445 words) - 00:20, 12 May 2025
observed gravitational acceleration at a location Gravity of Mars – Gravitational force exerted by the planet Mars Newton's law of universal gravitation – Classical...
32 KB (3,826 words) - 04:20, 25 May 2025
of the gravitational source. It is a vector oriented toward the field source, of magnitude measured in acceleration units. The gravitational acceleration...
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The gravitational constant is an empirical physical constant involved in the calculation of gravitational effects in Sir Isaac Newton's law of universal...
45 KB (5,215 words) - 20:33, 14 May 2025
universal gravitation thus takes the form: F = G m 1 m 2 r 2 , {\displaystyle F=G{\frac {m_{1}m_{2}}{r^{2}}},} where F is the gravitational force acting...
28 KB (3,839 words) - 02:05, 24 May 2025
gravitational binding energy of a system is the minimum energy which must be added to it in order for the system to cease being in a gravitationally bound...
10 KB (1,512 words) - 14:46, 17 May 2025
Gravity (redirect from Gravitational interaction)
known as gravitation or a gravitational interaction, is a fundamental interaction, a mutual attraction between all massive particles. On Earth, gravity...
80 KB (8,564 words) - 02:36, 20 May 2025
DTED (category Digital elevation models)
prediction. Terrain elevations are described as the height above the Earth Gravitational Model 1996 (EGM96) geoid, not the WGS84 reference ellipsoid. DTED supports...
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charged or polarized ellipsoidal bodies. The gravitational potential (V) at a location is the gravitational potential energy (U) at that location per unit...
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ellipsoid and a normal gravity model. The GRS80 gravity model has been followed by the newer more accurate Earth Gravitational Models, but the GRS80 reference...
7 KB (1,078 words) - 12:07, 24 August 2024
the Earth is the size and shape used to model planet Earth. The kind of figure depends on application, including the precision needed for the model. A...
25 KB (2,946 words) - 21:41, 7 May 2025
The standard gravitational parameter μ of a celestial body is the product of the gravitational constant G and the mass M of that body. For two bodies...
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major gravitational wave finding". The Telegraph. Archived from the original on 12 February 2016. Could Gravitational Waves Ever Cause Damage On Earth? Blanchet...
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Pioneers of gravitational theory In physics, theories of gravitation postulate mechanisms of interaction governing the movements of bodies with mass. There...
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In physics, a gravitational field or gravitational acceleration field is a vector field used to explain the influences that a body extends into the space...
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require measurements at greater distances from the Earth, or a larger gravitational source. Gravitational time dilation was first described by Albert Einstein...
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distance at which the Earth's gravitational influence is stronger than the more distant Sun and planets. Objects orbiting the Earth must be within this...
17 KB (1,860 words) - 12:44, 24 March 2025
(specifically the "ground elevation", relative to the current geoid – Earth Gravitational Model – attached to WGS84), and the concept is extended for other coordinates...
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Entropic gravity (section Melvin Vopson's theory. Gravitational attraction emerges as an entropic information force)
or MOND, which holds that at a gravitational acceleration threshold of approximately 1.2×10−10 m/s2, gravitational strength begins to vary inversely...
28 KB (3,736 words) - 06:45, 9 May 2025
explain the gravitational variations, and uplift of the crust-mantle interface is required as well. Based on Lunar Prospector gravitational models, it has...
22 KB (2,337 words) - 19:44, 22 May 2025
Gravitational waves are oscillations of the gravitational field that travel through space at the speed of light; they are generated by the relative motion...
106 KB (12,709 words) - 10:27, 10 April 2025
geocentric model (also known as geocentrism, often exemplified specifically by the Ptolemaic system) is a superseded description of the Universe with Earth at...
74 KB (8,585 words) - 04:09, 26 May 2025
elliptical orbits. The Earth Gravitational Model 1996 (EGM96) contains 130,676 coefficients that refine the model of the Earth's gravitational field.: 40 The...
20 KB (3,514 words) - 15:47, 22 January 2025
Equatorial bulge (redirect from Bulge (Earth))
acceleration. At the Equator, the effective gravitational acceleration is 9.7805 m/s2. This means that the true gravitational acceleration at the Equator must be...
15 KB (1,940 words) - 21:00, 24 May 2025
by a model of the planet's gravitational field. Typically the model is based on simplifying assumptions, such as that, under its self-gravitation and rotational...
20 KB (2,991 words) - 10:20, 12 May 2025
geopotential model is the theoretical analysis of measuring and calculating the effects of Earth's gravitational field (the geopotential). The Earth is not...
25 KB (1,976 words) - 22:02, 15 April 2025
Lagrange point (redirect from L2 Earth-Sun Lagrange point)
an unbalanced gravitational force at a point, altering the orbit of whatever is at that point. At the Lagrange points, the gravitational forces of the...
51 KB (5,817 words) - 13:33, 24 May 2025
Orbital decay (section Gravitational radiation)
orbital motion, such as fluid friction, gravitational anomalies, or electromagnetic effects. For bodies in low Earth orbit, the most significant effect is...
14 KB (1,962 words) - 05:37, 19 May 2025